Open-source software for syncing and backing up files across Windows, macOS, and Linux by transferring only essential data.
Cost / License
- Freemium
- Open Source
Application type
Platforms
- Mac
- Windows
- Linux
- Flathub
- PortableApps.com
- Chocolatey




There are many alternatives to BestSync for Windows if you are looking for a replacement. The best free Windows alternative is FreeFileSync, which is also Open Source. If that doesn't suit you, our users have ranked more than 25 alternatives to BestSync and many of them are free and available for Windows so hopefully you can find a suitable replacement. Other interesting free Windows alternatives to BestSync are Duplicati, GoodSync, SyncBack and DirSync Pro.
Open-source software for syncing and backing up files across Windows, macOS, and Linux by transferring only essential data.




Duplicati stores encrypted, incremental backups with AES-256 encryption and GPG, compatible with Windows, Linux, MacOS. Supports cloud services like OneDrive, Google Drive, and includes a built-in scheduler, auto-updater. Run backups through a web interface or command line.




A comprehensive solution for file synchronization and backup, GoodSync allows seamless and real-time file sync across desktops, mobiles, and cloud services directly, bypassing third-party servers. Ideal for both personal and professional needs.




SyncBack allows for backing up, synchronizing, and restoring files on Windows. It offers a free version, SyncBackSE and Pro for more features, including local networks and cloud backups. Ideal for individuals and large organizations like hospitals, ensuring data protection and recovery.



DirSync Pro is a small, but powerful utility for file and folder synchronization. Java JRE 1.7 or above is needed to run DirSync Pro.




Powerful Win utilities: fix registry, clean junk, protect privacy, optimize system, quick launch, find duplicates, folder size, see more recent resources, activity monitor, batch operation, synchronization, disable context menus, skip UAC, trace file.




DSynchronize is a stand-alone utility that let you periodically synchronize two or more folders on Hard Disk, Floppy Disk, LAN, USB Key, CD-DVD (with packet writing software) and FTP server.




Back4Sure is a feature-rich backup solution for typical backup use. No VSS Volume Shadow Copy function for open files. The program can make a backup to hard-disk, USB drive or network and can also be compressed using high or low compression settings to a ZIP or 7-zip file of...



A graphical interface for the Rsync engine that will synchronise files between two computers either locally or over the internet. The beauty of Rsync is that it only transfers the exact part of a file that has changed (differential synchronisation), saving bandwidth and time.

Create Synchronicity is a nice, lightweight backup program with a very user-friendly - yet powerful - interface, that synchronizes files and folders extremely quickly (it can even recognize paths such as "MyUSB"\MyFolder, and locate the USB drive called...



Karen's Replicator copies selected files from one drive/folder to another. Source and Destination folders can reside anywhere on your network.




FTPGrab is a CLI application written in Go to grab your files from a remote FTP or SFTP server to your NAS, server or computer. With Go, this app can be used across many platforms 🎲 and architectures.

